verb (used with object)

to remove the color from; deprive of color; bleach.

Also especially British, de·col·our.

Origin of decolor

1400–50; late Middle English decolouren < Latin dēcolōrāre, equivalent to dē- de- + colōrāre to color
Related formsde·col·or·a·tion, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for decolour

Historical Examples of decolour

British Dictionary definitions for decolour


decolorize or decolorise


(tr) to deprive of colour, as by bleaching
Derived Formsdecoloration, noundecolorization or decolorisation, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012